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Specialized Uses of Contact lenses

Traditional contact lenses are used to correct eye vision defects and typically replace prescription glasses. There are two other types of contact lenses that have specialized uses serving some special needs. These are orthokeratology lenses and decorative (plano) lenses. Find contact lenses as per your need and buy lenses online.

Orthokeratology (Ortho-K)

Orthokeratology, or Ortho-K, is a lens fitting procedure designed to correct myopia or nearsightedness. By using specially designed rigid gas permeable (RGP) contact lenses it changes the curvature of the cornea to temporarily improve the eyes’ ability to focus on objects. The most common type of Ortho-K lenses are the Overnight ones and are prescribed to be worn for at least eight sleeping hours each night. They are removed upon awakening and not worn at all during the day. While some people can go all day without their glasses or contact lenses, others will find that their vision correction will wear off during the day. There are some Ortho-K lenses that are prescribed only for daytime wear.

The vision correction effect in Ortho-K is thus temporary. Once the Ortho-K is discontinued, the corneas will return to their original curvature and the eye to its original myopic condition. Ortho-K lenses must be worn on some prescribed schedule to maintain the effect of the treatment. Your eye-care practitioner will be the best person to recommend the treatment.

Decorative (Plano) Contact Lenses

Some contact lenses are used solely for cosmetic purposes; they do not correct vision and are meant to change the appearance of the eye. These kind of lenses are often called plano, zero-powered or non-corrective lenses. For example, they can change the colour of the eyes from green to brown or create an effect that will make a person‘s eyes resemble that of a cat or some such weird affectation. Even though these decorative lenses are not used to correct vision, they’re regulated by the FDA, just like corrective contact lenses. They also carry the same risks to the eye which include eye infections like conjunctivitis, corneal ulcers, corneal abrasion and vision impairment or blindness.

Cosmetic contact lenses can add that little extra flair to Halloween costumes, such as the ones featured on Hollywood has been using these lenses for years, and now, with the right costumes, you can get that same effect.

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